Means for cooling explosive-engine cylinders.



PATBNTBD JAN. 29, 1907.

G. P. DORRIS.

MEANS POR COOLING EX'PLOSIVE ENGINE CYLINDERS.

APPLICATION FILED 0073.5, 1804.

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GEORGE P. DORRIS, OF ST. LOUIS, MISSOURI.

PATENT OFFIOE.

NIEANS FOR COOLING EXPLOSlVE-ENGINE CYLINDERS.

Specification of. Letters Patent.

Patented Jan. 29, 1907.

Application filed October 5, 1904. Serial No. 227.199.

To all whom, it Wha/y concern.-

Beit known that I, GEORGE P. Domus, a

. citizen of the United States, residing in the city of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Means for Cooling EX losive-Engine Cylinders, of which the fol owing is a full, clear, and exact description, reference being had to the accom anying drawings,

1o forming part of this speci cation.

My invention relates to a means roviding for the use of air for cooling the cy inders'of gasolene or other explosive-engine cylinders.

The invention consists infeatures of novelty hereinafter fully described, and Jpointed out in the claim.

Figure I is a longitudinal section taken through a seriesof engine-cylinders with my 'improvement applied thereto. Fig. II is a zo transverse section taken on line II II, Fig. I.

Fig.'- III is a perspective view of one end of one of the tubes utilized in my improvement.

.,U. 1 designates explosive-engine cylinders that may be of any desirable number and of any common type and which form parts of an engine. For the urpose of maintaining the cylinders 1 of a lhw degree of tempera* ture for satisfactory operation of the engine I .convey thereto a constant supply of air 3o through a conductor or hood 2.

3 is a jacket surrounding the engine-cylinders.

4 designates a plurality of tubes that are open throughout their length and into which '3 5 communication from the conductor 2 is obtained, due to one end of each of the tubes being exposed t the interior of said conductor. The tubes surround the engine-cylinders l, as a body, and referably extend longitudinally of said cy inderS, as shown. It will be seen that by utilizin the plurality of tubes of small diameter, as i lustrated, I furnish a large heat-absorbing medium by which the heat resulting in the engine-cylinders is taken up, and that due to the circulation of air through said tubes. This absorbed heat will be constantly disseminated trom the tubes by being carried therefrom with the air.

I preferably thread or rib the tubes 3, as illustrated in Figs. I and III, and by so doing increase the heat absorbing area of the tubes, so that they will take up the heat from the cylinders with greater eiiciency and in addition will be held in assembled condition by interlocking with each other throu hout the body of tubes to prevent their displacement.

I claim as my invention- The combination with the cylinder of an explosive-engine, of a jacket surrounding said cy inder, a hood located at one end of said jacket to conduct air thereto, and a plurality GEORGE P. DORRIS.

In presence ofy NELLre V. ALEXANDER, BLANCHE HoeAN'. 

